[2018-09-14T12:11:12,752][INFO ][org.apache.kafka.common.utils.AppInfoParser] Kafka version : 1.1.0
[2018-09-14T12:11:12,752][INFO ][org.apache.kafka.common.utils.AppInfoParser] Kafka commitId : fdcf75ea326b8e07
[2018-09-14T12:11:13,194][WARN ][org.apache.kafka.clients.NetworkClient] [Consumer clientId=logstash-0, groupId=logstash] Connection to node -1 could not be established. Broker may not be available.
And the last line goes beyond time.
Any advise appreciated.